CN115441104B - Battery top cover structure - Google Patents
Battery top cover structure Download PDFInfo
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- CN115441104B CN115441104B CN202210707838.9A CN202210707838A CN115441104B CN 115441104 B CN115441104 B CN 115441104B CN 202210707838 A CN202210707838 A CN 202210707838A CN 115441104 B CN115441104 B CN 115441104B
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- battery
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- top cover
- cover structure
- data channel
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- 238000009434 installation Methods 0.000 claims abstract description 5
- 239000004033 plastic Substances 0.000 claims description 14
- 229920003023 plastic Polymers 0.000 claims description 14
- 239000000523 sample Substances 0.000 claims description 10
- 238000007789 sealing Methods 0.000 claims description 10
- 239000004743 Polypropylene Substances 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 9
- 229920001155 polypropylene Polymers 0.000 claims description 9
- -1 polypropylene Polymers 0.000 claims description 7
- 229910000838 Al alloy Inorganic materials 0.000 claims description 3
- 239000000853 adhesive Substances 0.000 claims description 3
- 230000001070 adhesive effect Effects 0.000 claims description 3
- 239000004800 polyvinyl chloride Substances 0.000 claims description 2
- 229920000915 polyvinyl chloride Polymers 0.000 claims description 2
- 230000005540 biological transmission Effects 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 8
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 5
- 229910052744 lithium Inorganic materials 0.000 description 5
- 230000005856 abnormality Effects 0.000 description 4
- 238000003745 diagnosis Methods 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 238000012544 monitoring process Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 238000003491 array Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 210000001503 joint Anatomy 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 229920001169 thermoplastic Polymers 0.000 description 2
- 239000004416 thermosoftening plastic Substances 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 239000000956 alloy Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 239000011889 copper foil Substances 0.000 description 1
- 238000003487 electrochemical reaction Methods 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229910000625 lithium cobalt oxide Inorganic materials 0.000 description 1
- BFZPBUKRYWOWDV-UHFFFAOYSA-N lithium;oxido(oxo)cobalt Chemical compound [Li+].[O-][Co]=O BFZPBUKRYWOWDV-UHFFFAOYSA-N 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 239000000565 sealant Substances 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/10—Primary casings; Jackets or wrappings
- H01M50/147—Lids or covers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
- H01M50/519—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing comprising printed circuit boards [PCB]
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/569—Constructional details of current conducting connections for detecting conditions inside cells or batteries, e.g. details of voltage sensing terminals
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
The invention discloses a battery top cover structure which is used for transmitting data acquired by a battery embedded sensor to a main controller outside a battery through an external antenna, wherein the battery top cover comprises a top plate, a bottom plate and a data channel, the top plate comprises an installation structure of the external antenna and is configured to keep a target distance from a battery shell when the external antenna is installed on the top plate. According to the battery top cover structure, the external antenna and the battery shell are kept at a target distance, so that the influence of the electromagnetic shielding effect of the battery shell on the antenna is weakened, support on a transmission medium is provided for realizing wireless management of a battery, and a corresponding physical passage is provided for data transmission of the battery embedded sensor to an antenna control chip by arranging a data channel between a top plate and a bottom plate, so that the battery management system based on the battery embedded sensor is further realized.
Description
Technical Field
The invention relates to the technical field of batteries, in particular to a battery top cover structure.
Background
In the related art, a method for monitoring the safety of a battery is generally to deploy sensors such as voltage, current, temperature, stress, gas and the like from a control board outside a battery module, report data collected by the sensors to a main controller, and make an abnormality diagnosis and process the abnormality diagnosis by the main controller. But the external signal cannot timely feed back the internal change due to the blocking of the battery metal casing. The inside of the single lithium battery is provided with a sandwich winding uneven structure, once failure warning signals such as lithium precipitation and short circuit occur in the inside, the monitoring technology of the battery external module level needs a certain time to feed back the warning signals, and early warning, early isolation and early treatment cannot be realized. But when the sensor is deployed inside the battery, the space constraints inside the battery are relaxed and the difficulties of how the internal signals are transmitted outside the battery are faced.
Disclosure of Invention
The object of the present invention is to solve at least to some extent one of the above-mentioned technical problems.
To this end, the present invention aims to provide a battery top cover structure.
In order to achieve the above object, in the battery top cover structure according to the embodiment of the present invention, the data collected by the embedded sensor of the battery is transmitted to the main controller outside the battery through the external antenna, and the battery top cover includes a top plate, a bottom plate, and a data channel, where the top plate includes an installation structure of the external antenna, and the data channel is disposed between the top plate and the bottom plate, and is configured to maintain a target distance from the battery case when the external antenna is installed on the top plate.
According to the battery top cover structure provided by the embodiment of the invention, data acquired by the battery embedded sensor are transmitted to the main controller outside the battery through the external antenna, wherein the battery top cover comprises a top plate, a bottom plate and a data channel, and the top plate comprises an installation structure of the external antenna and is configured to keep a target distance from a battery shell when the external antenna is installed on the top plate. According to the battery top cover structure, the external antenna and the battery metal shell are kept at a target distance, so that the influence of the electromagnetic shielding effect of the battery shell on the antenna is weakened, the support on a transmission medium is provided for realizing wireless management of a battery, and a corresponding physical passage is provided for data transmission of the battery embedded sensor to an antenna control chip by arranging a data channel between a top plate and a bottom plate, so that a battery management system based on the battery embedded sensor is conveniently realized.
In one embodiment of the invention, the data channel tube is of polypropylene material and includes a tubular structure for supporting the passage of data lines and a plastic cap structure for adhesive sealing with the lower plastic.
In one embodiment of the invention, the target distance is not less thanWherein c is the speed of light in vacuum, f is the operating frequency of the antenna, ε r For antenna circuitsRelative dielectric constant of the plate lambda g Is the guide wavelength.
In one embodiment of the invention, the mounting structure includes the antenna circuit board and a securing structure.
In one embodiment of the invention, the back of the antenna circuit board is fixedly connected with an antenna control chip, and the antenna control chip is provided with an MCU data unit.
In one embodiment of the invention, the fixing structure comprises a fixing seat, and the fixing seat is a hollow structure.
In one embodiment of the invention, the antenna circuit board and the fixing structure are provided with corresponding fixing holes.
In one embodiment of the invention, the pin trace of the antenna control chip is connected with a probe, wherein the pin trace penetrates through the antenna circuit board through the probe to be connected with the external antenna and feeds the external antenna.
In one embodiment of the invention, the external antenna is disposed at a predetermined position on the front surface of the antenna circuit board.
In one embodiment of the invention, the data line in the data channel tube is connected with the antenna control chip.
In one embodiment of the invention, the top plate is made of aluminum alloy, and the bottom plate is made of polypropylene plastic.
In one embodiment of the invention, the material of the fixing structure is polyvinyl chloride.
In one embodiment of the invention, the bottom plate comprises a notch arranged on the bottom plate, wherein the notch is fixedly connected with the plastic cap structure.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The foregoing and/or additional aspects and advantages of the invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings, in which:
fig. 1 is a schematic structural view of a battery top cover structure according to an embodiment of the present invention;
fig. 2 is a schematic diagram of the structure of an antenna circuit board according to an embodiment of the present invention;
fig. 3 is a schematic structural view of an antenna circuit board according to another embodiment of the present invention;
FIG. 4 is a schematic view of the structure of a top plate according to one embodiment of the present invention;
FIG. 5 is a schematic structural view of a base plate according to one embodiment of the present invention;
FIG. 6 is a schematic diagram of a data channel structure according to one embodiment of the invention;
FIG. 7 is a schematic diagram of a data channel interfacing embedded sensor according to one embodiment of the invention;
FIG. 8 is a schematic illustration of an electrode structure according to one embodiment of the invention;
fig. 9 is a simulated antenna radiation pattern according to one embodiment of the invention.
Reference numerals:
1. a top plate; 101 fixing holes; 102. a data channel hole; 11. a mounting structure; 111. an antenna circuit board; 112. a fixed structure; 113. an antenna control chip; 114. a probe; 115. an external antenna; 2. a bottom plate; 21. a notch; 3. a data channel; 311 data channel pipe; 312 plastic caps; 32. a data interface; 321. a seal ring; 322. a wire passage; 4. a battery embedded sensor; 41. a sensitive material; 42. a sensor interface circuit; 5. an electrode; 51. a pole piece; 52. a pole; 53. an insulating pad; 54. pole piece grooves.
Detailed Description
Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present invention and should not be construed as limiting the invention.
In the related art, a method for monitoring the safety of a battery is generally to deploy sensors such as voltage, current, temperature, stress, gas and the like from a control board outside a battery module, report data collected by the sensors to a main controller, and make an abnormality diagnosis and process the abnormality diagnosis by the main controller. However, since the single lithium battery is internally provided with the sandwich winding uneven structure, once failure warning signals such as lithium precipitation and short circuit occur in the single lithium battery, a certain time is required for the monitoring technology of the module level to feed back the warning signals, so that early warning, early isolation and early treatment cannot be realized.
To this end, the present invention provides a battery top cover structure. A battery top cover structure according to an embodiment of the present invention is described below with reference to fig. 1 to 3.
In the embodiment of the invention, the battery top cover structure is used for transmitting data acquired by the battery embedded sensor to the main controller outside the battery through the external antenna.
Wherein, as shown in fig. 1, in the embodiment of the invention, the battery top cover comprises a top plate 1, a bottom plate 2 and a data channel 3, wherein the top plate 1 comprises a mounting structure 11 of an external antenna, and the data channel 3 is arranged between the top plate 1 and the bottom plate 2 and is configured to keep a target distance from a battery shell when the external antenna 115 is mounted on the top plate 1.
Wherein, when data channel 3 welds on bottom plate 2, can closely laminate in shape.
In order to avoid causing stronger shielding effect on electromagnetic waves, in the embodiment of the invention, the target distance is not less thanWherein c is the speed of light in vacuum, f is the operating frequency of the antenna, ε r Lambda is the relative dielectric constant of the antenna circuit board g Is the guide wavelength.
That is, the external antenna 115 is at least kept with the battery caseTo ensure that the far field radiation of the external antenna 115 has acceptable distanceStrength. Wherein epsilon is selected for reducing the volume of the external antenna 115 and shortening the distance from the external antenna 115 to the battery case r Larger alumina was used as the matrix plate. In this embodiment, the external antenna 115 may be a rectangular patch antenna with a U-shaped slot, wherein the thickness of the substrate is 0.8mm, the length is 15mm, and the width is 21mm. By maintaining the external antenna 115 at a target distance from the battery housing, the external antenna 115 may be brought to a gain of 2.8dbi in a direction away from the battery housing.
In the embodiment of the present invention, the mounting structure 11 includes an antenna circuit board 111 and a fixing structure 112.
In order to fix the antenna circuit board 111, as shown in fig. 2, in the embodiment of the present invention, the antenna circuit board 111 and the fixing structure 112 are provided with corresponding fixing holes 101. For example, the number of the fixing holes 101 is 4, wherein the positions of the fixing holes 101 are located at four corners of the antenna circuit board 111. For example, the antenna circuit board 111 may be fixed to the fixing structure 112 by an insulating screw. The fixing structure 112 may enable the external antenna 115 to maintain a target distance from the battery case when the external antenna 115 is mounted on the top plate.
As shown in fig. 3, the back of the antenna circuit board 111 is fixedly connected with an antenna control chip 113, and the antenna control chip 113 is provided with an MCU data unit. The MCU data unit is mainly used for processing data, packaging data and receiving instructions of an external main controller.
The pin trace of the antenna control chip 113 is connected to the probe 114, and the pin trace penetrates through the antenna circuit board 111 through the probe 114 to be connected to the external antenna 115 and feed. Wherein, the external antenna 115 is disposed at a preset position on the front surface of the antenna circuit board 111.
It should be noted that the antenna control chip 113 has many pins, but only one pin can control the antenna. The wiring led out by the pin of the control antenna is connected with the probe 114, so that the pin wiring is connected with the external antenna 115 through the probe 114, and the antenna control chip 113 controls the antenna 115. The vicinity of the trace led out from the pin of the control antenna cannot be covered with copper over a large area.
In an embodiment of the present invention, the fixing structure 112 includes a fixing base, where the fixing base is a hollow structure. That is, a data channel is disposed in the hollow structure, wherein the data channel 3 is disposed between the top plate 1 and the bottom plate 2.
It can be understood that, as shown in fig. 4, by arranging the fixing seat with a hollow structure on the top plate 1, the data line of the data channel tube can pass through the wire channel 322 in the data channel 3 and the fixing seat to be connected to the antenna control chip 113, so that the antenna control chip 113 can send and receive data.
For example, in an embodiment of the present invention, the length of the data channel 3 may be located above the bottom end of the holder and below the bottom end of the antenna circuit board 111, where the data channel 3 is located below the bottom end of the antenna circuit board 111 and is the back surface of the antenna circuit board 111. For example, the length of the data channel 3 may be 4mm above the bottom end of the holder.
In the embodiment of the present invention, the data channel tube 3 is made of polypropylene material, and the data channel tube 3 includes a tubular structure for supporting the passage of the data line and a plastic cap structure for adhesive sealing with the lower plastic.
Wherein a pipe-type structure supporting the passage of data lines may include 4 data channel pipes 311. In one embodiment of the present invention, as shown in FIG. 5, data channel 3 may be provided with 4 data channel pipes 311 for interfacing with the 4wire-SPI interface of battery embedded sensor 4 interface circuit 42. Each data channel tube 311 has a radius of 0.8mm and the wire channel 322 has a radius of 0.25mm.
Wherein, the whole data channel 3 adopts insulating thermoplastic polypropylene (PP); a plurality of data channel pipes 311 are opened inside to serve as physical paths for data transmission. As shown in fig. 6, a data interface 32 is provided at the bottom of the data channel 3, and a plurality of sealing rings 321 are provided at the top thereof, wherein the plurality of sealing rings 321 correspond to the data channel pipe 311 and are hermetically connected by ultrasonic welding. The sealing ring 321 has a hollow structure, and a wire channel 322 is arranged in the middle and used for the passage of a data wire, so that the sealing ring can be in butt joint with the interface circuit 42 of the battery embedded sensor 4.
Wherein, as shown in fig. 7, the battery embedded sensor 4 should have corrosion resistance, including sensitive material 41 and sensor interface circuit 42. In a specific embodiment of the scheme, the whole battery embedded sensor 4 is deployed on a flexible circuit board FPC, the corrosion resistance is improved by covering a polyimide film, and a metal sheet is used as a stress sensor for sensitive materials.
In the embodiment of the present invention, the bottom plate 2 includes a notch 21 disposed on the bottom plate 2, wherein the notch 21 is fixedly connected with the plastic cap structure 312.
In one embodiment of the present invention, the antenna circuit board 111 is introduced by using the remaining space on the basis of the battery top cover having the positive and negative electrode posts, the liquid injection hole and the explosion-proof device, for example, a square battery with a length of 27mm, a width of 148mm and a height of 148mm is taken as an example, wherein the antenna circuit board 111 has a size of 20mm long, 30mm wide and 30mm high, and the height is selected to be greater than 30mm for better effectThe surface of the antenna circuit board 111 is provided with a 2.4GHz U-shaped rectangular patch antenna (i.e. an external antenna 115), and four corners of the antenna circuit board 111 are provided with fixing holes 101, and are fixed on a fixing structure 112 through insulating screws.
In one embodiment of the invention, the electrode 5 is shown in fig. 8. Wherein the radius of the pole piece 51 is 4mm, the positive pole piece adopts aluminum foil, the negative pole piece adopts copper foil, and the thickness is 1mm; the side of the pole 52 is provided with an insulating material, and the inside is a lithium cobalt oxide pole with a radius of 1mm. The insulating pad 53 is used to separate the pole piece 51 from the pole plate 1 by a radius of 5mm and a height of 2mm. The insulating pad 53 is nested in the pole piece slot 54. The plastic cap structure 312 is ultrasonically welded to the cut-out of the plate 2.
In order to save space, the antenna control chip 113 is disposed on the back side of the antenna circuit board 111, and is fed in the form of a coaxial probe 114, leaving space for the front side antenna.
Wherein, battery top cap structure adopts comparatively traditional two-layer structure, and the upper strata is roof 1 of aluminum alloy material, and the lower floor is bottom plate 2 of insulating thermoplastic polypropylene (PP), has introduced data channel 3 on this basis, and wherein, data channel 3 sets up between roof 1 and roof 2, and then the data line of battery embedded sensor is connected to antenna control chip 113 through data channel 3 in, has carried out sealed processing to data channel 3 equally.
For example, in the case of battery top cover construction, the embedded sensor is first required to be embedded, and the sensor interface is connected to the wire channel 322, so that the data line passes through the wire channel 322. And the data channel 3 penetrates through the bottom plate 2, so that the plastic cap structure 312 in the bottom plate 2 is tightly attached to the notch 21 in the lower bottom plate 2, the sealing ring 321 and the data channel pipe 311 are connected, and the data lines are respectively penetrated through the holes 311. The sealing ring 321 and the inner wall of the data channel pipe 311 are welded into a whole by ultrasonic welding, so that the tightness is ensured, then the data channel 3 passes through the top plate 1 and is bonded with the gap by the sealant, thereby completing all sealing treatment, and finally, the pre-designed mounting structure 11 of the external antenna 115 is mounted on the surface of the top plate 1. Therefore, the data channel pipe is introduced into the double-layer battery top cover of the top plate and the bottom plate, and the data channel and the bottom plate are tightly attached by adopting an ultrasonic welding technology, so that a butt joint path is provided for the embedded sensor and an external main controller on the premise of ensuring the tightness of the battery top cover, and meanwhile, the electrochemical reaction in the electrolyte is not interfered.
It should be noted that, in the embodiment of the present invention, the external antenna 115 may reach a gain of 2.8dbi in the direction away from the battery case by maintaining the external antenna 115 at the target distance from the battery case. As shown in fig. 9, where HS is the XOZ-plane pattern and LS is the YOZ-plane pattern, the gain is maximized in the Z-direction away from the metal housing.
According to the battery top cover structure provided by the embodiment of the invention, data acquired by the battery embedded sensor are transmitted to the main controller outside the battery through the external antenna, wherein the battery top cover comprises a top plate, a bottom plate and a data channel, and the top plate comprises an installation structure of the external antenna and is configured to keep a target distance from a battery shell when the external antenna is installed on the top plate. According to the battery top cover structure, the external antenna and the battery shell are kept at a target distance, the influence of the electromagnetic shielding effect of the battery shell on the antenna is weakened, support on a transmission medium is provided for realizing wireless management of a battery, and a corresponding physical passage is provided for transmitting data of the battery embedded sensor to the antenna control chip by arranging a data channel between a top plate and a bottom plate, so that a battery management system based on the battery embedded sensor is conveniently realized.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.
It is to be understood that portions of the present invention may be implemented in hardware, software, firmware, or a combination thereof. In the above-described embodiments, the various steps or methods may be implemented in software or firmware stored in a memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, may be implemented using any one or combination of the following techniques, as is well known in the art: discrete logic circuits having logic gates for implementing logic functions on data signals, application specific integrated circuits having suitable combinational logic gates, programmable Gate Arrays (PGAs), field Programmable Gate Arrays (FPGAs), and the like.
Those of ordinary skill in the art will appreciate that all or a portion of the steps carried out in the method of the above-described embodiments may be implemented by a program to instruct related hardware, where the program may be stored in a computer readable storage medium, and where the program, when executed, includes one or a combination of the steps of the method embodiments.
In addition, each functional unit in the embodiments of the present invention may be integrated in one processing module, or each unit may exist alone physically, or two or more units may be integrated in one module. The integrated modules may be implemented in hardware or in software functional modules. The integrated modules may also be stored in a computer readable storage medium if implemented in the form of software functional modules and sold or used as a stand-alone product.
The above-mentioned storage medium may be a read-only memory, a magnetic disk or an optical disk, or the like. While embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the invention, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the invention.
Claims (12)
1. The battery top cover structure is used for transmitting data acquired by a battery embedded sensor to a main controller outside a battery through an external antenna, and is characterized in that the battery top cover comprises a top plate, a bottom plate and a data channel, wherein the top plate comprises an installation structure of the external antenna, and the data channel is arranged between the top plate and the bottom plate and is configured to keep a target distance from a battery shell when the external antenna is installed on the top plate;
the mounting structure comprises a fixing structure, the fixing structure comprises a fixing seat, the fixing seat is of a hollow structure, and the fixing seat of the hollow structure is arranged on the top plate.
2. The battery top cover structure of claim 1, wherein the data channel tube is a polypropylene material, said data channel tube comprising a tubular structure for supporting the passage of data lines and a plastic cap structure for adhesive sealing with the lower plastic.
3. The battery top cover structure of claim 1,characterized in that the target distance is not less thanWhere c is the speed of light in vacuum, f is the operating frequency of the antenna, ε is the relative dielectric constant of the antenna circuit board, and λ is the guide wavelength.
4. The battery top cover structure of claim 1, wherein the mounting structure comprises an antenna circuit board.
5. The battery top cover structure according to claim 4, wherein the back surface of the antenna circuit board is fixedly connected with an antenna control chip, and the antenna control chip is provided with an MCU data unit.
6. The battery top cover structure of claim 4, wherein the antenna circuit board and the fixing structure are provided with corresponding fixing holes.
7. The battery top cover structure of claim 5, wherein the pin trace of the antenna control chip is connected with a probe, wherein the pin trace is connected with the external antenna through the antenna circuit board by the probe and feeds.
8. The battery top cover structure of claim 7, wherein the external antenna is disposed at a predetermined position on the front surface of the antenna circuit board.
9. The battery top cover structure of claim 5, wherein a data line in the data channel tube is connected to the antenna control chip.
10. The battery top cover structure of claim 1, wherein the top plate is made of aluminum alloy, and the bottom plate is made of polypropylene plastic.
11. The battery top cover structure of claim 4, wherein the fixing structure is made of polyvinyl chloride.
12. The battery top cover structure of claim 2, wherein the base plate includes a notch disposed on the base plate, wherein the notch is fixedly connected to the plastic cap structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210707838.9A CN115441104B (en) | 2022-06-21 | 2022-06-21 | Battery top cover structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210707838.9A CN115441104B (en) | 2022-06-21 | 2022-06-21 | Battery top cover structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115441104A CN115441104A (en) | 2022-12-06 |
| CN115441104B true CN115441104B (en) | 2024-04-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210707838.9A Active CN115441104B (en) | 2022-06-21 | 2022-06-21 | Battery top cover structure |
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| CN (1) | CN115441104B (en) |
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| CN113675485A (en) * | 2020-09-29 | 2021-11-19 | 欣旺达电动汽车电池有限公司 | Intelligent battery core, battery system and electric automobile |
| CN216015525U (en) * | 2021-09-26 | 2022-03-11 | 宁德时代新能源科技股份有限公司 | Battery top cap, battery monomer and electric device |
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2022
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| CN101615704A (en) * | 2008-06-27 | 2009-12-30 | 山东申普汽车控制技术有限公司 | Has the storage battery of automatic detection control function and to the control method of storage battery |
| DE102012205136A1 (en) * | 2012-03-29 | 2013-10-02 | Robert Bosch Gmbh | A sensor device for a battery cell of an electrical energy storage, battery cell, method for producing the same and method for transmitting sensor data within the same |
| CN212323099U (en) * | 2020-07-16 | 2021-01-08 | 傲普(上海)新能源有限公司 | Battery pack capable of wirelessly measuring temperature |
| CN113675485A (en) * | 2020-09-29 | 2021-11-19 | 欣旺达电动汽车电池有限公司 | Intelligent battery core, battery system and electric automobile |
| CN112599869A (en) * | 2020-12-16 | 2021-04-02 | 北京理工大学 | Lithium ion intelligent battery system |
| CN216015525U (en) * | 2021-09-26 | 2022-03-11 | 宁德时代新能源科技股份有限公司 | Battery top cap, battery monomer and electric device |
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